.treeRoot {
  box-sizing: border-box;
  height: 100%;
  padding: 96px 32px 32px;

}

.draggingSource {
  opacity: 0.3;
}

.dropTarget {
  background-color: #e8f0fe;
}

.rootGrid {
  display: grid;
  grid-template-columns: auto 1fr;
  flex-grow: 1;
}

.externalContainer {
  border-right: solid 1px #eee;
  display: grid;
  grid-template-rows: 64px 1fr;
  padding: 32px;
  position: relative;
}

.btnAdd {
  left: 32px;
  position: absolute;
  top: 32px;
}